Installing The Pistons And Cylinders - Yamaha XV1600A1999 Service Manual

CYLINDERS AND PISTONS
4. Calculate:
S piston pin-to-piston pin bore clearance
Out of specification ! Replace the piston
pin.
Piston pin-to-piston pin bore clearance =
Piston pin bore diameter (in the piston)
b –
Piston pin outside diameter a
EAS00268
INSTALLING THE PISTONS AND CYL-
INDERS
The following procedure applies to all of the pis-
tons and cylinders.
1. Install:
S top ring
S 2nd ring
S lower oil ring rail
S upper oil ring rail
S oil ring expander
NOTE:
Be sure to install the piston rings so that the
manufacturer's marks or numbers face up.
2. Install:
S piston 1
S piston pin 2
S piston pin clip 3
NOTE:
S Apply engine oil onto the piston pin.
S Make sure the "arrow" mark a on the piston
faces towards the front of the motorcycle.
S Before installing the piston pin clip, cover the
crankcase opening with a clean rag to prevent
the clip from falling into the crankcase.
5-58
ENG
Piston pin-to-piston pin bore
clearance
0.004 0.024 mm
<Limit>: 0.074 mm
New